Unit 4 (H420)

Detailed A* level notes covering the whole topic of communicable diseases (specification point 4.1.1). This is for the OCR A level Biology A course. These notes cover every single specification point within this topic and are concise but contain everything you need to know. Topics covered: - animal and plant pathogens and disease - plant defences - non-specific immune system - specific immune system - preventing and treating diseases

Detailed A* level notes covering the whole topic of Classification (specification point 4.2.2). This is for the OCR A level Biology A course. These notes cover every single specification point within this topic and are concise but contain everything you need to know. I achieved an A* with the notes and am now a medical student. These topics are covered: - evolution - phylogeny - variation - 5 kingdoms

Detailed A* level notes covering the whole topic of biodiversity (specification point 4.2.1). This is for the OCR A level Biology A course. These notes cover every single specification point within this topic and are concise but contain everything you need to know. I achieved an A* with the notes and am now a medical student. These topics are covered: - biodiversity - genetic biodiversity - maintaining biodiversity - sampling techniques - conservation

This document contains summary’s on all of the communicable disease topic for OCR A biology. There are pictures to make it easier to visualise each description. The notes are made on GoodNotes and are easily readable.

A HandWritten summary which contains all the necessary A* Content for Specific Defense at OCR A-Level Biology.

A HandWritten summary which contains all the necessary A* Content for Non-Specific Disease at OCR A-Level Biology.

A HandWritten summary which contains all the necessary A* Content for Evolution at OCR A-Level Biology.